Large number limit of multifield inflation

doi:http://dx.doi.org/10.1103/PhysRevD.96.123521

ITP OpenIR > 计算平台成果

	Guo, ZK; Guo, ZK (reprint author), Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
	Large number limit of multifield inflation
发表期刊	PHYSICAL REVIEW D
语种	英语
摘要	We compute the tensor and scalar spectral index n(t), n(s), the tensor-to-scalar ratio r, and the consistency relation n(t)/r in the general monomial multifield slow-roll inflation models with potentials V similar to Sigma(i)lambda(i)vertical bar phi(i)vertical bar(Pi). The general models give a novel relation that nt, ns and n(t)/r are all proportional to the logarithm of the number of fields N-f when N-f is getting extremely large with the order of magnitude around O(10(40)) thorn. An upper bound N-f less than or similar to Ne(ZN) is given by requiring the slow variation parameter small enough where N-* is the e-folding number and Z is a function of distributions of lambda(i) and rho(i). Besides, n(t)/r differs from the single-field result - 1/8 with substantial probability except for a few very special cases. Finally, we derive theoretical boundsr r > 2/N-* (r greater than or similar to 0.03) and for nt, which can be tested by observation in the near future.
	2017
卷号	96 期号:12 页码:123521
合作性质	国内
学科领域	Astronomy & Astrophysics ; Physics
DOI	http://dx.doi.org/10.1103/PhysRevD.96.123521
项目资助者	National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; National Natural Science Foundation of China [11647601] ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University ; Weng Hongwu Academic Innovation Research Fund of Peking University
引用统计
文献类型	期刊论文
条目标识符	http://ir.itp.ac.cn/handle/311006/22192
专题	计算平台成果
通讯作者	Guo, ZK (reprint author), Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Guo, ZK,Guo, ZK . Large number limit of multifield inflation[J]. PHYSICAL REVIEW D,2017,96(12):123521.
APA	Guo, ZK,&Guo, ZK .(2017).Large number limit of multifield inflation.PHYSICAL REVIEW D,96(12),123521.
MLA	Guo, ZK,et al."Large number limit of multifield inflation".PHYSICAL REVIEW D 96.12(2017):123521.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Large number limit o（281KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	请求全文